Flexible wearable pressure sensors have attracted tremendous interest for applications in human health monitoring, electronic skin, artificial intelligence and so on. However, it is still a critical challenge for pressure sensors to simultaneously achieve high sensitivity and wide sensing range while performing well in response time, stability, reliability and wearing comfortability. Here, conductive MXene/cotton fabric was fabricated using the simple dip-coating technique and then sandwiched between polydimethylsiloxane film and an interdigitated electrode for flexible wearable piezoresistive pressure sensor. The abundant hydroxyl groups of cotton fabric and functional groups of MXene were beneficial for the good adhesion of conductive MXene nanosheets onto the entangled fiber networks, constructing effective conductive network. Taking advantage of the excellent flexibility and three-dimensional porous structure of cotton fabric and the special sandwich architecture of the sensor, the MXene/cotton fabric (MCF) based pressure sensor exhibited high sensitivity (5.30 kPa^-1 in the pressure range of 0-1.30 kPa), broad sensing range (0-160 kPa), rapid response/recovery time (50 ms/20 ms), excellent stability and long-term durability. Moreover, the MCF based pressure sensor can be employed to detect and distinguish various human health signals, including finger motion, early stage Parkinson’s static tremor and wrist pulse. Importantly, E-skin was also designed based on the MCF based pressure sensor for the recognition of different tactile stimuli, exhibiting promising potential in next generation wearable electronics.

柔性可穿戴压力传感器在人体健康监测，电子皮肤，人工智能等领域的应用引起了极大的兴趣。然而，对于压力传感器而言，同时获得高灵敏度和宽广的感测范围，同时在响应时间，稳定性，可靠性和佩戴舒适性方面表现出色仍然是一个严峻的挑战。此处，使用简单的浸涂技术制造了导电MXene /棉织物，然后将其夹在聚二甲基硅氧烷膜和用于柔性可穿戴压阻式压力传感器的叉指电极之间。棉织物中丰富的羟基和MXene的官能团有利于导电MXene纳米片材良好地粘附在缠结的纤维网络上，从而构建有效的导电网络。^-1在0-1.30千帕的压力范围），宽检测范围（0-160千帕），反应迅速/回收时间（50毫秒/ 20毫秒），优异的稳定性和长期耐久性。此外，基于MCF的压力传感器可用于检测和区分各种人类健康信号，包括手指运动，帕金森早期的静态震颤和手腕搏动。重要的是，还基于基于MCF的压力传感器设计了E-skin，用于识别不同的触觉刺激，在下一代可穿戴电子产品中显示出广阔的发展潜力。